Get the MarineRadar appSatellite AISSatellite live trackingTrack any shipLive alerts112,000+ ships trackedDownload free

Kasumi Kō Main Breakwater Lighthouse

F Red 4s🇯🇵Kami, JPOperational

Location & Light Range

About Kasumi Kō Main Breakwater Lighthouse

A cylindrical concrete tower, 9.5 meters tall with a flared top, stands at the end of the main breakwater for Kasumi's newer harbor. Its structure includes an attached equipment shelter. The tower's red color provides a visual cue against the water. This lighthouse emits a single red flash every four seconds from a focal height of 17 meters. Its geographic range extends to 12.4 nautical miles, guiding vessels to the port of Shibayama, located 1.3 kilometers away.

Why it matters: This lighthouse is essential for vessels entering and exiting the newer Kasumi harbor, clearly marking the end of the main breakwater and preventing collisions with the structure.

Light & Optic

Characteristic Signature
F Red 4s
Flash Type
Fixed
Light Color
Red
Interval
4s
Raw Code
F.Fl R 4s
Focal Height
17m
Geographic Range
12.4NM

Location

City
Kami
Country
🇯🇵Japan
Region
Hyogo Prefecture
Sea Region
main breakwater of the newer harbor of Kasumi
Latitude
35.6555°
Longitude
134.6375°

References & Identifiers

Nearest Port
Shibayama(1.3 km)

Tower & Structure

Tower Height
9.5m
Tower Shape
cylindrical
Tower Color
red
Material
concrete

Structure: round concrete tower with a flared top, attached to a small equipment shelter

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.
Live tracking · 50,000+ mariners

Find Kasumi Kō Main Breakwater Lighthouse on the live nautical map

Plan voyages near Japan, see nearby vessels in real time, and explore 14,900+ navigation aids in the app.

Nautical mapNearby vesselsVoyage planning
Get the App

Frequently Asked Questions

How do mariners identify Kasumi Kō Main Breakwater Lighthouse at night?+
Kasumi Kō Main Breakwater displays the characteristic F Red 4s. Each lighthouse has a unique flash pattern published in the List of Lights, allowing mariners to positively identify it and distinguish it from other navigation aids in the area. The red color may indicate a specific sector or warning zone.
Which ports and harbors does Kasumi Kō Main Breakwater Lighthouse guide vessels into?+
Kasumi Kō Main Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Shibayama at 1.3 NM to the E. Other ports served include Yasugi (3.3 NM E), Hamasaka (9.4 NM W), Tsui (9.7 NM E), Tsuiyama (9.7 NM E). Mariners should consult the relevant chart for full approach and pilotage information.
Is Kasumi Kō Main Breakwater Lighthouse still active and maintained?+
Yes, Kasumi Kō Main Breakwater Lighthouse is currently operational. It is actively maintained and continues to emit its characteristic light signal for marine navigation. Most modern lighthouses are automated and monitored remotely by the national maritime authority.
What shipping routes pass near Kasumi Kō Main Breakwater Lighthouse?+
Kasumi Kō Main Breakwater Lighthouse is located within the Japan / Korea shipping lane — a busy shipping corridor linking the major ports of Japan and South Korea. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Kasumi Kō Main Breakwater Lighthouse?+
You can track vessels near Kasumi Kō Main Breakwater Lighthouse in real time using MarineRadar. The platform shows live AIS positions of ships in the area, including vessel name, type, flag, speed, and course. Use the "Track Vessels Nearby" button on this page to open the live map centered on this lighthouse.